* Implement new API function pwg.groups.merge
* Generalize the delete group function in admin/include/functions.php
* Implement merge action in Group Manager
* Add loading state on grouped delete in group manager
* Member manager's design fixes
* Implement the member research
* Visual fix for the "add member" form
* Use of the local storage to import all user (for the add member form)
* Change the feedback of add and remove members
* Add load state for the adding and removing users
* Synchronize member number displays
* Limit the number of members displayed
* Adding and removing members now works in the Member manager popup
* Implement an intelligent research input for adding users
* Add the plugin confirm.js
* Add a confirm popup for the group deletion
* Implement the "Set as group for new users" action for groups
* Move js to a separate file
* Rename and delete by selection functions are now operational
* Add error or information messages at actions
* Add different colors on group icons
* Fixes (selection panel...)
* design based on Samuel's mockup + Hannah's adaptations
* on each plugin actions shown as buttons in a single column (better compatibility with verbose languages such as German)
* description always shown (no more need of the "show details" action)
* filter based on plugin title/description (javascript, no page reload)
* hide inactive plugins if they are 8 or more
* plugins no longer shown in the admin left menu, they instead get a "settings" action if relevant. Compatible with the old trigger get_admin_plugin_menu_links but new method is to simply add a "Has Setting : true" in the main.inc.php header
Height of popin changed to avoid a scroll bar that isn't needed
Sliders changed made rounder and colors changed to grey and orange, for both light and dark mode
* Hide album selection after creation
* Correctly center the welcome box
* Better alignment for select files info
* Remove summary for select files info, always display details
* Fix dynamic margins in album popin
* Simplify show/hide blocks when no album available
* Make file selection button secondary when files added to queue
- #567 add icon on button
- font-icon checkboxes
- #554 add tab
- #528 remove borders
- remove action "reset" which was actually "restore default settings" and was not really useful, so let's simplify
* [header] replace the color switcher by a light/dark (sun/moon) action link
* [footer] add icons for piwigo.org doc & forum
* [footer] replace Piwigo logo with a clean SVG version, created by @mistic100
* [header/footer] remove "|" separators
* [header] limit title display to 50% of page width (with ellipsis on overflow)
* [header] media query to hide link labels below 800px
* [header] switch color of home icon on hover
* on clear theme, change header/footer background color to #333 (dark grey) like on current Piwigo.org
Zacharie